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Finding the Fourth Proportional to 371,936.80, 557,905.20 and 194,498.20

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Solution

The fourth proportional to 371,936.80, 557,905.20 and 194,498.20 is: 291,747.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,936.80 : 557,905.20 = 194,498.20 : x
  2. Step 2: Convert to fraction form
    371,936.80/557,905.20 = 194,498.20/x
  3. Step 3: Cross multiply
    371,936.80x = 557,905.20 × 194,498.20
  4. Step 4: Simplify right side
    371,936.80x = 108,511,557,170.64
  5. Step 5: Solve for x
    x = 108,511,557,170.64/371,936.80
  6. Step 6: Final answer
    x = 291,747.30

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.